# Answer to Question #12764 in Statistics and Probability for maria

Question #12764

Rhodium

126,4

133.3

131.3

134.2

132.6

135.7

132.5

131.2

133.8

133.3

132.9

133.0

132.1

133.3

133.5

131.5

133.0

131.1

133.5

133.5

131.1

132.4

131.4

133.4

132.3

131.1

131.6

131.2

133.5

132.7

131.9

132.6

131.1

133.0

132.9

132.7

132.2

131.1

132.8

134.1

find the mean,10% and 20% trimmed mean and median and then compare

126,4

133.3

131.3

134.2

132.6

135.7

132.5

131.2

133.8

133.3

132.9

133.0

132.1

133.3

133.5

131.5

133.0

131.1

133.5

133.5

131.1

132.4

131.4

133.4

132.3

131.1

131.6

131.2

133.5

132.7

131.9

132.6

131.1

133.0

132.9

132.7

132.2

131.1

132.8

134.1

find the mean,10% and 20% trimmed mean and median and then compare

Expert's answer

The mean is 132.42, 10% trimmed mean is 132.48, 20% trimmed mean is 132.53,

median is 132.65. For the trimmed mean it is useful to first sort the numbers

from smallest to largest. The trimmed mean is the mean after you throw out some

extreme values (typically the highest 10% or 20% and the lowest 10% or 20%).For

the 10% trimmed mean, we delete the 4 smallest and 4 largest values, and take

the mean of the remaining 32. For the 20% trimmed mean, we delete the 8 smallest

and 8 largest values, and take the mean of the remaining 24.

median is 132.65. For the trimmed mean it is useful to first sort the numbers

from smallest to largest. The trimmed mean is the mean after you throw out some

extreme values (typically the highest 10% or 20% and the lowest 10% or 20%).For

the 10% trimmed mean, we delete the 4 smallest and 4 largest values, and take

the mean of the remaining 32. For the 20% trimmed mean, we delete the 8 smallest

and 8 largest values, and take the mean of the remaining 24.

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